Bromide ion → (4aS,13aR)-8-bromo-10-[(phenylmethyl)oxy]-2,3,4a,5,13,13a-hexahydro-1H-pyrido[1,2-a]pyrrolo[1',2':3,4]imidazo[1,2-d]pyrazine-9,11-dione

HRID 594840ノート

反応式

HRID 594840 の反応式
[NH:1]1[CH2:5][CH2:4][CH2:3][C@@H:2]1[CH2:6][NH2:7].CN(C=O)C.[Br:13][C:14]1[C:15](=[O:36])[C:16]([O:28][CH2:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)=[C:17]([C:24](OC)=[O:25])[N:18]([CH2:20][CH:21](O)O)[CH:19]=1.[Br-]>C(#N)C.C(O)(=O)C>[Br:13][C:14]1[C:15](=[O:36])[C:16]([O:28][CH2:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)=[C:17]2[C:24](=[O:25])[N:7]3[CH2:6][C@H:2]4[CH2:3][CH2:4][CH2:5][N:1]4[C@@H:21]3[CH2:20][N:18]2[CH:19]=1

参加物

7

反応物 4

HCID 259Bromide ionHCID 6228DimethylformamideHCID 3034041(2R)-2-PyrrolidinemethanamineHCID 58277223Methyl 5-bromo-1-(2,2-dihydroxyethyl)-4-oxo-3-[(phenylmethyl)oxy]-1,4-dihydro-2-pyridinecarboxylate

生成物 1

HCID 46239162(4aS,13aR)-8-bromo-10-[(phenylmethyl)oxy]-2,3,4a,5,13,13a-hexahydro-1H-pyrido[1,2-a]pyrrolo[1',2':3,4]imidazo[1,2-d]pyrazine-9,11-dione収率 78%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 6342Acetonitrile溶媒

反応条件

温度
15 °C

実験手順

A reactor was charged with [(2R)-2-pyrrolidinylmethyl]amine (0.75 kg) and 4.6 L of DMF was added followed by 0.45 kg of glacial acetic acid. Acetonitrile (41.4 L) was then added and the mixture was agitated for 15 minutes. To the reaction mixture was added methyl 5-bromo-1-(2,2-dihydroxyethyl)-4-oxo-3-[(phenylmethyl)oxy]-1,4-dihydro-2-pyridinecarboxylate (2.30 kg). After stirring for 20 minutes at ambient temperature, the mixture was heated at 75-85° C. until the bromide starting material was consumed by HPLC analysis (about 6 hrs). Upon completion, the mixture was cooled until the reflux subsided and then charged with 6.9 L of methanol and the mixture was heated at reflux for about 45 minutes then cooled to 15° C. and filtered and dried to provide (4aS,13aR)-8-bromo-10-[(phenylmethyl)oxy]-2,3,4a,5,13,13a-hexahydro-1H-pyrido[1,2-a]pyrrolo[1′,2′:3,4]imidazo[1,2-d]pyrazine-9,11-dione (1.93 kg, 78%) as a white solid). 1H NMR (300 MHz, DMSO-d6) δ ppm 8.65 (m, 1H), 7.54 (m, 2H), 7.33 (m, 3H), 5.15 (d, 1H), 4.99 (d, 1H), 4.60 (m, 1H), 4.36 (m, 1H), 4.03 (m, 1H), 3.90 (m, 1H), 3.65 (m, 1H), 3.06-2.84 (m, 3H), 1.92-1.60 (m, 4H).

後処理

  1. additionwas added
  2. stirringAfter stirring for 20 minutes at ambient temperature
  3. customwas consumed by HPLC analysis (about 6 hrs)
  4. temperatureUpon completion, the mixture was cooled until the reflux
  5. additioncharged with 6.9 L of methanol
  6. temperaturethe mixture was heated
  7. temperatureat reflux for about 45 minutes
  8. filtrationfiltered
  9. customdried

出典と根拠

ORDレコード
ord-caeca04094ac4c1da6a810717eb51254
出典データセット
uspto-grants-2016_01
特許番号
US09242986B2

反応ノート

読み込み中…